论文成果

发布时间：

2026-08-26

论文名称：

Interface-synergistically optimized type-II heterojunction g-C3N4-0.5%Ni/Zn0.7Cd0.3S for highly efficient photocatalytic hydrogen evolution

发表刊物：

Journal of Environmental Chemical Engineering

摘要：

Owing to the intrinsic limitations of conventional semiconductor photocatalysts, this study proposed a two-component collaborative modification strategy of two components in the heterojunction to optimize their interface interaction, and ultimately achieved a significant improvement in the overall photocatalytic performance. As a result, g-C3N4(CN)-0.5%Ni/Zn0.7Cd0.3S heterojunction photocatalysts were successfully prepared by solvothermal method. The experimental results and density functional theory (DFT) calculations confirm that the multi-component coordinated control strategy can significantly expand the visible light response range, significantly increase the specific surface area, and improve the separation efficiency of photogenerated carriers by accurately optimizing the electronic structure and interface properties of the photocatalyst. Under visible-light irradiation, the CN-0.5%Ni/Zn0.7Cd0.3S achieved a photocatalytic hydrogen evolution rate of 5681 ± 142 μmol·g−1·h−1, which is 3.59 times, 5.00 times, and 4.32 times higher than those of CN/ZnS, ZnS, and CN, respectively, while exhibiting excellent cycling stability. Moreover, the composite catalyst CN-0.5%Ni/Zn0.7Cd0.3S maintains high photocatalytic hydrogen evolution activity in various natural water matrices. This work overcomes the inherent limitations of single modification strategies, providing both experimental evidence and theoretical insights for the performance optimization of conventional photocatalysts.

合写作者：

Jing Fan, Yuming Dong, Jinwen Shi, Qi Qi, Jie Liu,* Fenhong Song*

卷号：

14

期号：

5

页面范围：

124700

是否译文：

否

发表时间：

2026-08-24